A great example of "no engineering applied past appearance":
The strain reliefs on every power adapter they make start out horrible, they fray, they get a lawsuit, then they fix them to look "uglier" but actually work.
Then they release a new power adapter that looks good but sucks again and the cycle continues.
I'm having trouble finding the lawsuit over the old powerbook connectors, so let's start with magsafe 1
Original magsafe 1: http://support.apple.com/kb/TS4127
They got sued. This was the settlement. Note that every single magsafe power adapter i have frayed.
There is an article in an atlantic that quotes a supposed apple employee saying they knew this was a bad idea.
http://www.theatlanticwire.com/technology/2012/07/why-apples...
(Obviously, i don't think this is reliable sourcing, but it's plausible)
Newer magsafe 1: These are the ones that are sideways and have a much larger strain relief, and look like this:
http://www.theatlanticwire.com/technology/2012/07/why-apples...
Great, problem solved, less strain.
Let's look at magsafe 2: http://photos.appleinsider.com/12.06.11-MBP-3.jpg
Whoops, back to the same issue of cables mostly bent at harsh angles due to T shaped adapters, and a smaller strain relief.
Admittedly, it's bigger than the original magsafe 1 strain relief, but I expect it's only a matter of time before these fray again.